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This article mainly introduces the Linux kernel parameter adjustment methods, the article is very detailed, has a certain reference value, interested friends must read it!

Ulimit Settin

Ulimit-n needs to be adjusted to 100000 or more. Execute ulimit-n 100000 from the command line to modify it. If you cannot modify it, you need to set / etc/security/limits.conf and join.

* soft nofile 262140

* hard nofile 262140

Root soft nofile 262140

Root hard nofile 262140

* soft core unlimited

* hard core unlimited

Root soft core unlimited

Root hard core unlimited

Note: after modifying the limits.conf file, you need to restart the system to take effect.

Kernel Settin

There are three ways for Linux operating system to modify kernel parameters:

Modify / etc/sysctl.conf file, add configuration option, format is key = value, call sysctl-p to load new configuration after modification and save

Use the sysctl command to temporarily modify, such as: sysctl-w net.ipv4.tcp_mem= "379008 505344 758016"

Directly modify the files in the / proc/sys/ directory, such as echo "379008 505344 758016" > / proc/sys/net/ipv4/tcp_mem

The first method takes effect automatically after the operating system is rebooted, and the second and third methods fail after reboot.

These are all the contents of the article "what are the methods of adjusting Linux kernel parameters?" Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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